Respiratory, Developmental, Rehabilitative and Restorative Service Providers / 224ZE0001X
Individual · specialization
224ZE0001X Environmental Modification Occupational Therapy Assistant
224ZE0001X is the taxonomy code for Environmental Modification, a specialization of Occupational Therapy Assistant, in the NUCC group “Respiratory, Developmental, Rehabilitative and Restorative Service Providers”. It is a code for individual providers — the kind used on a Type 1 NPI. It has no entry in the CMS Medicare taxonomy crosswalk.
- 1Taxonomy code 224ZE0001X
- 2Level Specialization
- 3Medicare specialty Not in the crosswalk
- 4Codes in this group 82
Definition
Occupational therapy assistants provide environmental modifications under the supervision of an occupational therapist. OTAs develop and implement an individualized occupational therapy environmental modification plan that reflects the relevant contexts of the client and relevant others and maximizes current and future occupational performance, safety, and participation of the client. Clients receive environmental modification recommendations and interventions that enable them to meet occupational performance and participation goals and that have adequate flexibility to accommodate for their future needs.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 224ZE0001X sits
- Group: Respiratory, Developmental, Rehabilitative and Restorative Service Providers — code 25 of 82 in the group
- Classification: Occupational Therapy Assistant 224Z00000X
- Specialization: Environmental Modification 224ZE0001X
Choose 224ZE0001X over the general Occupational Therapy Assistant code (224Z00000X) when the provider's training or certification is specifically in environmental modification; the general code covers the classification as a whole. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
224ZE0001X has no entry in the CMS Medicare Provider and Supplier Taxonomy Crosswalk. That usually means Medicare does not enroll this kind of provider under its own specialty — the provider can still hold an NPI and use this code on claims to other payers.
Related codes
| Code | Occupational Therapy Assistant — other specializations |
|---|---|
| 224Z00000X | Occupational Therapy Assistant |
| 224ZR0403X | Driving and Community Mobility |
| 224ZF0002X | Feeding, Eating & Swallowing |
| 224ZL0004X | Low Vision |
History of 224ZE0001X
224ZE0001X was added to the code set in 2008.
- 2008-07-01 — new
Similar codes in other groups
If 224ZE0001X is not quite right, these codes in other groups share a word with it — often the same field practised by a different kind of provider:
- 2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician (Allopathic & Osteopathic Physicians)
Find providers with 224ZE0001X
Using 224ZE0001X
The code goes in the taxonomy field of the NPI application in NPPES, and on claims where a payer asks for it — box 24J (shaded) or 33b on the CMS-1500 with the ZZ qualifier, or the PRV segment of an 837 electronic claim. Payers match it against the taxonomy on the NPI record and, for Medicare, against the specialty on the enrollment, so all three should agree. To see which code a provider uses, search their NPI in the lookup.
Sources: NUCC Health Care Provider Taxonomy code set, version 26.1 (CSV). Checked 2026-10-24. Methodology.